St Marys Sydney North-west

Monitoring Station · St Clair, Australia
89
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
75 5pm
75
75
75 8pm
75
75
75 11pm
50
50
50 2am
37
37
37 5am
37
37
— 8am
—
—
— 11am
—
—
— 2pm
—
—

Air Quality Trend (24h)

Nearby Monitoring Stations

103
St Marys Sydney North-west
0.0 km
15
St Marys Sydney North-west
0.0 km
30
St Marys Sydney North-west
0.0 km
51
St Marys Sydney North-west
0.0 km
37
Sydney Penrith
9.6 km
69
Sydney Penrith
9.6 km
23
Sydney Penrith
9.6 km
17
Sydney Penrith
9.6 km

Nearby Cities

54 St Clair 54 Mount Druitt 52 Glenmore Park 55 Cranebrook 53 Quakers Hill 64 Blacktown 63 Seven Hills 64 Glenwood 64 Greystanes

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-09T20:57 UTC.